content: /**
   * Copyright (c) 2016-present, RxJava Contributors.
   *
   * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in
   * compliance with the License. You may obtain a copy of the License at
   *
   * http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software distributed under the License is
   * distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See
   * the License for the specific language governing permissions and limitations under the License.
   */
  
  package io.reactivex.common.internal.utils;
  
  import java.util.HashMap;
  import java.util.Map;
  import java.util.concurrent.Callable;
  
  public enum HashMapSupplier implements Callable<Map<Object, Object>> {
      INSTANCE;
  
      @SuppressWarnings({ "unchecked", "rawtypes" })
      public static <K, V> Callable<Map<K, V>> asCallable() {
          return (Callable)INSTANCE;
      }
  
      @Override public Map<Object, Object> call() throws Exception {
          return new HashMap<Object, Object>();
      }
  }
  